Magnesiohornblende Oberti R, Ungaretti L, Cannillo E, Hawthorne F C, Memmi I European Journal of Mineralogy 7 (1995) 1049-1063 Temperature-dependent Al order-disorder in the tetrahedral double chain of C2/m amphiboles Sample: S(3) _database_code_amcsd 0006602 9.856 18.078 5.311 90 104.85 90 C2/m atom x y z occ Biso NaA 0 1/2 0 .056 1.61 KA 0 1/2 0 .026 1.61 NaAm .0436 1/2 .0924 .056 1.33 KAm .0436 1/2 .0924 .026 1.33 NaA2 0 .4700 0 .056 2.50 KA2 0 .4700 0 .026 2.50 FeM1 0 .0888 1/2 .3 .54 MgM1 0 .0888 1/2 .7 .54 AlM2 0 .1777 0 .11 .47 TiM2 0 .1777 0 .075 .47 FeM2 0 .1777 0 .26 .47 MgM2 0 .1777 0 .555 .47 AlM3 0 0 0 .03 .49 FeM3 0 0 0 .34 .49 MgM3 0 0 0 .63 .49 CaM4 0 .2789 1/2 .4525 .88 MnM4 0 .2789 1/2 .005 .88 FeM4 0 .2789 1/2 .0425 .88 CaM4' 0 .2533 1/2 .4525 .69 MnM4' 0 .2533 1/2 .005 .69 FeM4' 0 .2533 1/2 .0425 .69 SiT1 .2804 .0850 .2987 .78 .44 AlT1 .2804 .0850 .2987 .22 .44 SiT2 .2901 .1718 .8082 .95 .51 AlT2 .2901 .1718 .8082 .05 .51 H .1950 0 .7587 .9765 .5 O1 .1090 .0884 .2150 .69 O2 .1194 .1734 .7296 .71 O3 .1105 0 .7138 .9765 .78 F3 .1105 0 .7138 .0235 .78 O4 .3676 .2489 .7908 .91 O5 .3479 .1369 .1043 .96 O6 .3429 .1183 .5958 .93 O7 .3356 0 .2863 1.03